5th grade Science practice sheet
Alaska content standards · from Gradelings · Name: ______________________
Question 1
How can you get pure water back from salt water? Put the steps in order.
- 🔥Heat the salt water
- ❄️The vapor touches a cold surface and condenses
- 💧Drops of pure water drip into a clean cup
- ♨️Water evaporates and the salt stays behind
Heat the salt water → Water evaporates and the salt stays behind → The vapor touches a cold surface and condenses → Drops of pure water drip into a clean cup
Hint: Heat makes the water evaporate and leave the salt behind. Then the water vapor cools, condenses and drips into a clean container.
Question 2
In which state are particles packed closely and only vibrate in place?
- Solid
- Gas
- Liquid
Solid
Hint: A solid's particles are held in fixed positions.
Question 3
Snow on a roof melts as the weather warms. What happens to the thermal energy of the snow?
- It absorbs thermal energy
- It releases thermal energy
- It gains mass
It absorbs thermal energy
Hint: Melting needs energy to be added.
Question 4
Which change is hard to reverse?
- Burning wood
- Folding paper
- Freezing water
Burning wood
Hint: Burning makes ash and gases, which are new substances.
Question 5
In a gas, the particles…
💨- are far apart and move in all directions
- vibrate in place
- are packed tightly together
- do not have any space between them
are far apart and move in all directions
Hint: Gas particles have the largest spaces between them.
Question 6
High pressure usually brings…
- storms
- tornadoes
- clear, fair weather
clear, fair weather
Hint: Sinking air tends to keep skies clear.
Question 7
Plants make their own food using sunlight, water and…
- carbon dioxide from the air
- soil only
- sugar from animals
- salt
carbon dioxide from the air
Hint: Photosynthesis.
Question 8
After salmon spawn and die, their bodies…
- feed the forest and river life
- turn to stone
- vanish
- swim to the ocean
feed the forest and river life
Hint: Nutrients enter the ecosystem.
Question 9
Why brainstorm several solutions?
- To finish faster with one idea
- To make it cost more
- To compare ideas and pick the best one
- To avoid testing
To compare ideas and pick the best one
Hint: More ideas, better choices.
Question 10
Which one is a mechanical mixture?
- vinegar
- air
- salt water
- trail mix
trail mix
Hint: In a mechanical mixture, you can see and pick out the different parts, like nuts and raisins.
Answer key
- 1. Heat the salt water → Water evaporates and the salt stays behind → The vapor touches a cold surface and condenses → Drops of pure water drip into a clean cup (Solutions & Mixtures)
- 2. Solid (Solid, Liquid, Gas)
- 3. It absorbs thermal energy (Changes of State)
- 4. Burning wood (Physical or Chemical?)
- 5. are far apart and move in all directions (Measuring Matter)
- 6. clear, fair weather (Weather and the Water Cycle)
- 7. carbon dioxide from the air (Energy from the Sun)
- 8. feed the forest and river life (Matter Moves in Ecosystems)
- 9. To compare ideas and pick the best one (Engineering Challenges)
- 10. trail mix (Solutions & Mixtures)
Want more than 10 questions?
In Gradelings the questions change every time and adjust to your child, with hints and kind feedback. See all science units.